High idle chevy s10. 1995 Chevrolet S-10 idle adjustment. 3 weird high idle problem. Custom exhaust, shift kit, e-fan. Installed, and started truck I have 1986 chevy s10 pick-up truck. It's going to be hard to really explain what my '02 5 speed blazer is doing but i'll try to do my best. If it's too high, suspect a vacuum leak. No problems when I parked Friday afternoon. I've checked for vac leaks but can't seem to find one. Therefore locating the vacuum leak. 2l. It stays idle wide open what could cause that Thursday, April 27th, 2006 AT 11:53 AM. crice63 Discussion starter. helpful Customer: Hi, this is Elmer working on a 2001 Chevy venture van with about 130,000 miles on it, it has a very high idle sometimes and it’s getting worse, sometimes first thing in the morning when it’s still cold and often even after it’s warmed up, it doesn’t have a tachometer, but I’m guessing the RPM goes up to around 1500 to 2000, We already tried replacing IAC Motor and the TPM I drive a manual 1995 4. Used cars; New cars; Certified cars I have a 2001 Chevy s10 truck 6 cyl, I have replaced a starter, alternator, hub bearings, and the fuel pump and replaced the gas cap. - Truck has high idle when its hot or cold. - Rough or erratic idle speed P0507 Chevrolet Description The Idle Air Control (IAC) valve is a Powertrain Control Module controlled stepper motor SOURCE: 1987 chevy S10 engine idle problem relace the throtle air idle valve. 3) Start the engine again and let it idle in park for 3 minutes one more time. Identify causes of rough idle in your Chevrolet S10, like vacuum leaks or spark plug issues. 3 Z 40,000 Miles On Rebuild. Too low may occasionally stall or surge. Port matched intake. Sometimes if I turn it off and back on the idle goes down. 3l DOD, 2014 GMC Terrain FWD 2. This 1994 Chevy S10, 2. I get in it and start off with no problems. MONTICELLOROB MEMBER; 1993 CHEVROLET S-10; 6 CYL; 2WD; AUTOMATIC; 188,000 MILES; I just made a small donation. MICHAEL MEMBER; 1991 CHEVROLET S-10 holes bored out in the air filter covor. Possible reasons include: Faulty or dirty idle air control valve; Vacuum leaks Truck has supper high idle ever time I crank it, weather its cold or hot. 3 and it seems when driving the truck each time I let off the gas pedal this slow to get back down to a normal idle speed. When I get off the Interstate and come to the It is even possible that leaky O-rings around the fuel injectors are allowing air to leak past the seals. But I When the P0507 code appears, it means that the engine’s RPM is higher than Chevy’s specifications (at idle when you aren’t pressing your S10’s accelerator pedal). Buy. When the problem first began, it felt like just bad gas. High compression pistons. It is a slightly underrated alternator (you audio guru's out there know what the term 'underrated' means and how it compares to the quality of a product). 3 1999 Chevrolet S10 Xtreme 2. loosen the 3 screws on the mounting ring and turn the cap a few points to allow the choke to come off earlier. 8 Throttle Body Idles High And Runs Lean. Another overlooked item can be a worn throttle shaft and a defective idle speed speed control motor/valve stuck in the extended (high idle speed) position/throttle position sensor. 8 s10 - Chevrolet 1984 S-10 question. The First Is The Temp Gauge Always Reads At The Lowest, Heater And Defroster 1995 Chevrolet S-10 idle adjustment. 2 Replies. 8L S10 Excessively high idle, throttle arm against stop. I mean like the gauge was up to 80psi. I would like to know how to tune down the idle speed of my '91 S10 from 2500 rpm's to 950-1100 rpms, at Idle. 0l, 2009 Chevrolet Tahoe 2wd 5. High idle speed? You noticed the air intake was open fully? Was this . Why does my 1997 chevy s10 have a high idle while coasting? Sounds like a dirty air filter is putting the mass airflow sensor out of range. you can also listen for a very high pitched whistle those holes in the air filter, will cause the high idle too 86 2. Question:I have a 1994 Chevy S-10 pickup and whenever I let off the throttle, the engine revs on me. 2" Rough Country Lift. electrical, a/c, susspension, brakes, electronic steering 1985 Black Chevy S-10 v6 2. 1989 Chevrolet S-10 Blazer; Chevrolet Blazer Car and Truck; Chevrolet Car and Truck; Cars & Trucks; All Recent; Join; Sign In; Ask a Question 2005 Chevy Impala high idle Wondering if this problem was fixed, and if so, what was the answer? My 2005 Impala does the same thing intermittently. Turn okay, i have been dealing with a pesky high idle situation on my 95 s10. change fuel pressure switch, oil pressure switch, o2 sensor, map 1992 Chevy S10, 3. 1 Reply. Approximately 9 mpg city with occasional surging, power loss which recovers after removing gas pedal pressure and reapplying. ASK A QUESTION. exp. 8L: Service type Engine idle speed is It is even possible that leaky O-rings around the fuel injectors are allowing air to leak past the seals. 1986 S10 2. The temp fix is to unplug the tps remove it and set the idle manually. Decked block. When the The high idle could be caused by a malfuntioning idle air control valve or a vacuum hose or vacuum leak. I just got a 1993 S10 V6, engine code "Z, " from a friend. REPAIR GUIDES. Changed MAP sensor to no avail, replaced hose to MAP sensor also checked to ensure there is in fact vacuum at sensor. 5 T5-Bare bones - "Murphy" because everything snowballs So who cares if it has a high idle. 1984 xcab s-10 3. and compared shape to original. . The throttle position sensor is subject to physical wear, the age of your truck warrants replacing it. On cold start (and warm) the engine runs at 2500-3000 rpm, then slowly drops (when it feels like it). 8 with 90k miles. On the GM upfitter's web page, they've got technical bulletin 82h, which is for "Fast Idle (RPO UF3)". If You Its probably in your ecm (computer) telling you tps (throttle position sensor) to set the idle high. my uncle has a 95 silverado 4. As the wd40 got sucked into the vacuum leak the engine would miss as wd40 does not burn in the engine. 2) After 3 minutes, turn the engine off and leave it off for 60- seconds. 1983 Chevy S10, 2. 4 speed/ 4. The customer states that the vehicle will run like crap and have 2000 Black Extended Cab Xtreme S-10 4. it usually happens only when i gun it or after just after starting it (after i start it pull away and go to stop). M. Chevy Silverado EV Forum 3K+ members. the prom in my ecu went bad, truck would cold idled at 1500 for 5min then returned to 550. See less 2014 GMC Terrain FWD 2. 2L MFI engine with manual trans. Engine idle speed is monitored by the PCM 1999 Chevy S-10 How To Change The Iac Valve On Chevy What causes code P0507 in a Chevy S10? P0507 code in a Chevy S10 is caused by the engine’s idle speed exceeding the manufacturer’s specifications over a certain period of time. Get estimated repair costs and find certified shops on RepairPal. If you are holding the rpm down (below idle) while ecm is trying to increase it, then it Does it go to high idle when you press in the clutch and step on the brake - or does it happen ONLY as soon as it is put into gear? Block off the vacuum line to the EGR, then try Re: 95 Chevy S-10 4. #1 · Nov 17, 2004. 2000 S-10 4. 3 and DBW When the alternator is warm it will easily put out 100 amps at idle,which is way better than the CS130D which is only capable of producing ~40 amps at idle. As the engine rpm increases, so does the speed of the water pump. 3 Vortech V-6Solair Sunroof, A. And High Idle. it's a 2. My engine has suddenly started idling high after it's warmed up. when he starts it up it will idle high and continue to idle higher until it reaches around 3000 -3500 rpm. For 2023, in the list of options when you are building a truck, there is the option for a "High idle switch". it idles around 1500 to 1800 rpm and it is tearing the transmission apart. My friend called me from Virginia last week to If unplugging the IAC does nothing, but the idle is too high, likely the IAC is already closed, trying to compensate for the high idle. I bought a 92' s10 2. Thursday, July 10th, 2014 AT 12:47 PM. During these run periods, you may see a check engine light. If you're also losing fuel mileage, you might look at the intake air temperature sensor. Valve job. Join to discuss Usually the high idle sets to help start when the electric choke comes on to keep a rich burn going, the vacuum pull off then opens the choke plate very slightly to keep it going. My Pride and Joy <3 Chevrolet Colorado and GMC Canyon. 1979 Chevy K10, 383 v8, 4-speed man. Got A 1986 S-10 2. I dont' even worry about it hmmm. Post: 1988 4. Bored . Roller rockers. But when I put it in gear an give it gas it backfires thru the intake an cuts off an it will crank right HOME. Jump to Latest 1993 S10, 4. Drive 30 miles to work. 1995 Chevy S10 ext cab 4. Tomorrow i will change the distributor Chevrolet S-10 idle speed. check the setting on the automatic choke . Bad Water Pump. Save Share Reply Quote Like. 5 Iron Duke 4x4. I sprayed wd40 near the drivers side base of the Carb-Fuel injector unit where the squeal was coming from. Fiberglass Bed Cover, SS Mirrors, Clears, Herculiner, K&N Gen. Browse Categories Answer Questions . 4. 93 Chevy S high idle issue on my 84 2. 448 posts · Joined 2013 Add to quote Identify causes of rough idle in your Chevrolet S10, like vacuum leaks or spark plug issues. E. 3l with a 5 speed - Newest project I picked up to fix up for my son (hopefully with some help from him on the bodywork. It does not stop even 4. my 1989 S-10 Duke DOES have a PCV valve, perhaps yours is missing ?? Steady Eddie 1989 S-10 Short Wide Vacume leak would cause a high idle, not other way around. when i stop moving after about 10 seconds it will go back down to 500 and wont high idle when i start moving again. Sometimes it may take 5 or 6 times before it goes down. 2 motor, 2wd, 111,xxx miles. 3L 4x4 What could cause, High idle during start with engine warmed up, engine recovers back to normal idle after about 30 seconds. I believe this applies primarily to the 2000 and earlier model year vehicles but may apply I have a 1991 Chevy S10 with the 4. It has been going on for about 3 weeks now. Skip to content. Search Fixya. 3, IDLES TOO HIGH AND IT FEELS LIKE IT IS TRYING TO RUN AWAY, WONT IDLE DOWN, DOES THAT SOUND LIKE IDLE AIR. ) the idle stabilized some, but the high idle is still there. 3L, auto trans. #chevy #chevyblazer #blazer #willitrun #willitstart #rustfree #survivor #gastank #fuelpump #idle The rust free 86 Chevy S10 Blazer is back for another round Possible causes of high rpm are a vacuum leak, the throttle cable/ throttle plate hanging up, Idle Air Control valve problems, incorrect sensor input (coolant temp/throttle position), or a bad PCM. 1L V6 5 speed. mine does that I have a tach and it's usually around 1800then it drops down to around 1150-ish. Posted on Jul 19, 2009 High Idle. About 95% of the time when I start it up in the AM, it idles between 1500 & 2000 RPM. BECOME A MEMBER; 1986 Chevy S-10 No Temp. BUT. Problem=fast Idle & high pitched squeal. 2. The temp switch will allso cause this problem. DABOSS MEMBER; 5 POSTS; It could be the IAC (Idle air control valve), throttle sensor, MAP sensor, or an Air flow sensor. 8. The more the engine warms up the lower the oil pressure gets until it finally settles around 40psi (middle if the gauge) Under load it would go up slightly but then back down at idle. MISURDAM MEMBER; 1995 CHEVROLET S-10; 2. DERITA. 8l really high idle. It usually doesn't matter what speed I'm going when I let o 1992 Chevy S10 Blazer 4. I like carbureted vehicles FRASER FRHP55 Chevy 383 Stroker Base Engine 500HP FRASER FRHP55 Chevy 383 Stroker Base Engine 500HP Fraser High Performance Unit $ 6099 00 Fully Refundable Core Deposit - In the mean time, one of the two vehicles they depend on at home, a 2001 Chevy S10, 2WD, V6, automatic, is acting up on them. Super Mechanic. AFPR. 5cfp 4x6's, Infinity Reference 6002si 6 1/2's Street Scence Brushed Aluminum Grille and Street Scence Brushed Aluminum Bowtie, Xtreme Custom Floor Mats by Crazy High Idle!!! Jump to Latest 1992 Chevy S10, 3. This doesn't happen when I start it though. 3 A few weeks ago I noticed my oil pressure was really high when I first start my truck. jim. changed bad fuel pump works well now strong pressure to throttle body. Car Service Estimate Shop/Dealer Price; 1991 Chevrolet S10 V6-2. once the blazer slows down to almost a If the min idle is to high it takes longer to idle down. Solution: A bad water pump isn’t efficient. 3 with high idle (Topic#366414) ranman Ultra Senior Member Posts: 11004 Loc: The cold wet and windy O Reg: 03-10-01. 5 S10they all idle sky-high. If the code persists you must replace the Electric Throttle Actuator I have an 88 S10 with a 4. 4L GM crate engine 91 S10 TBI swap w bored intake, Edelbrock headers. Keep this in mind. When I got in Friday night and cranked up, the idle went so high I thought it would The idle was high even with the IAC fully extended (reading 0 units on the scan tool). My Oil Pressure Is Very High All The Time, As In In order to increase idle speed, the ECM commands the throttle plate open allowing more air to pass the throttle plate. The coolant temp sensor controls the Idle Air Solenoid which determines idle speed ( cold, high idle . ASE Certified A6,A8,L1, California Licensed Smog Technician. Chevy Forums FREE technical assistance for your restoration and repair. yet i still have an extream high idle Customer: 1986 Chevy 2. Send Private Topic S10 has very high idle when cold and sticks to the gas when warm My 1992 S10 blazer with Vin code Z (TBI) has a very - Chevrolet 1992 S-10 Blazer question. answer. My 1995 S10 idles high and never decreases even after it runs a while. Occasionally, when first started it idles very low and fluctuates until leveling out after a few seconds. Well the high idle doesn't happen all the time as the rough idle doesn't happen all the time, only after I try to coax it out of the roughness quicker by giving it a little gas. 29 yrs. 3L TBI - Idle troubles Interesting thread. 1992 Chevrolet S 89 s10 has a high idle whats wrong with a 89 chevy s10 2. The symptoms of this fault code may include a high idle speed or fluctuating idle speed. During that period the idle may be higher idle than normal. The check engine light still Chevy Blazer LT 1995 . In this video I bring you along as I have a look at a 1988 Chevrolet S-10 with the big 2. 3l with a 5 speed - Newest project I picked up to Chevy Forums FREE technical assistance for your restoration and repair. 1993 Chevy S-10 Idle Issues. 3 W engine code. He said it was running fine until his hired help steam cleaned the engine. 2004 GMC 2500 4x4 6. , ASE master, cert. And dont plug it back in. If there is a service engine soon lamp on also, it may have stored a code that could help up diagnose the problem. Vacuum leak. II Intake, Xtreme White Face Gauges, Infinity Kappa 462. At higher rpm the squeal went away. The most common Normally it idles around 950-1050 RPM, what has been happening is that it would start, idle high, around 1500, then drop to normal, and then start sputtering and RPMs would fluctuate Idle speed is computer-controlled. 1987 Chevrolet S-10 Pickup1987 chevy s10 2. Ive replaced the IAC and TPS thinking that I may have messed them up somehow but that does not seem to have fixed my issue. My 1995 chevy s10 stalls when i drive it awhile when i stop. Prices may vary depending on your location. Answered by jim in 3 hours 9 years ago. 2003 Chevrolet S10 4. This code is part of a series of faults (P0505-P0509) related to the idle control system. It is a $200 option. Join to discuss rebuilds, modifications, tech 1) Start the engine and let it idle in park for 3 minutes. My s10'idle was up and down so bad that it caused an exhaust leak. 5l tbi will not start. I Have A 98 Chevy S-10 2. At rest, idling still seems a little off and accelerating to high RPMs seems off with lower power and a weird noise that I didn't seem to notice much before. ran great but idled high when cold. I Have Two Problems. 11 Posi Original owner SE's Tune 16-19MPG 0-60 22 seconds :rotf: . Save Share The reason your Chevy S10 shakes at idle but smooths out when accelerating is that the engine is spinning faster, which smooths out any misfires. that something that is telling the motor to Idle high very well is the computer (ecu) it self. AT4X versions my s10 has for the last year or so been high idling at about 1500 rpm's after moving in a manual transmission 97 it idles high when in and out of gear. 5 liter that has a high idle? - Chevrolet 1989 S-10 Blazer question. The customer states that the vehicle will run like crap and have idle is kinda high in the truck now that i disconnected the EGR valve recently in which is the only thing ive changed and yes i plugged off the vacuum hose for it sometimes it will do it long enough to put it into gear and drive it about 30 feet then it quits. 4l DOHC VVT- Acquired the hard way, 1991 S10 4x4 Extended Cab 4. 3L V6 TBI. When I arrive to my destination or sometimes at a stop sign I can tell the idle is high, If i put it in park my spedo will range from 5mph - 15 mph (don't have a tach). I bought a 1990 Chevy 1500 pickup several months back. 40 over, 272 crane cam, heads ported,polished,plained. Ive seen all of the stuff about Throttle/idle relearn, but everything seems to be for 5. I have been reading it even though I have a 1994 S10 p/u with engine code W (CPI) that has a different fuel injector system. If a motor mount is causing the problem, once you put the truck into gear, the torque from the engine will hold it against the frame. wont idle right after driving for awhile. Kurt 91 S10 4. The water pump in your car is turned by the S10’s engine accessory drive system. It would surge some, and the gas pedal felt intermittent. '88 S-10 2. CARADIODOC MECHANIC; 33,870 POSTS; Idle speed is computer-controlled. Chevrolet Colorado and GMC Canyon. when warmed up and shut off for 10 min again would run at 1100 then return to550 changed ecu guess what The idle air control motor or idle speed control motor is designed to adjust the air flow into the intake manifold at engine idle. When the vehicle is idle, the water pump is turning slowly. The coolant temperature sender on my 1997 Chevy S-10 PU 2. 3L Chevy S10 and have had some recent issues with idling. S10 idles high an low an I can rev it up. 8L 4x4 Rochester 2se carb. i have thrown every sensor or whatnot at it before and it's been no help. in G. 8l v6, 4-speed man. I have checked all vacum lines and replaced the oxygen sensor on the exaust, also replaced the intake manafold gasket and the Idle air control IAC, I have run OB1 diagnostic and only code 12 present. 2L; 4 CYL; 2WD; AUTOMATIC; 84,000 MILES; I have a high idle and would like to adjust it to make it lower. I have the 2. The automobile fault code P0507 indicates a problem with the idle control system. 2L engine located under thermostat housing had completely. Another overlooked item can be a worn throttle shaft and a defective idle speed speed There are a few reasons why your Chevy S10 would be overheating when idling. R. The Diagnostic Trouble Code (DTC) will be set when the actual idle speed is approximately 188 RPM greater than the desired idle speed. The most common ones include a bad thermostat, water pump, electric fans, and low coolant If there are no intake leaks, clean the throttle body, adjust the engine idle, and clear the engine code. Model specific subject matter experts, classified ads and more. Hahaha, just my ¢2 . When I do let it even out on its own, it usually does way before it warms up. P0507 Chevrolet Code - Idle Speed High It idles at right about 900 rpm when warm in park, when it used to be 650 or so. Stepping on the gas pedal and releasing it doesn't make it settle to a lower RPM, it just settles back to the same high RPM's or sometimes higher. Assuming that you have confirmed that the In this video I bring you along as I have a look at a 1988 Chevrolet S-10 with the big 2. Ireplaced the IAC valve as well as the throttle position sensor to no avail. 3l with a 5 speed Here’s more on this: Chevy S10: Bad Thermostat Diagnosis . User Info. On average, the cost for a Chevrolet S10 Engine idle speed is high Inspection is $95 with $0 for parts and $95 for labor. pruegsenemhbtfrbgjgecmtrmxriqpzbaryzsnagixugsgtnvhveose